The mechanism and process of nanosecond pulsed-laser induced subwavelength periodic ripples on silica films

Xia, Zhilin; Cheng, Chaohua; Fang, Hongyuan; Shi, Chuncheng

doi:10.1016/j.apsusc.2015.02.082

Cited by 14 publications

(4 citation statements)

References 34 publications

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“…A 20 × 20 μm AFM image of the structure is shown in Figure S3b. The distance between the ripples was 270–300 nm, which is consistent with laser-induced periodic surface structures which can be produced by subpicosecond , or nanosecond laser pulses . These structures have been observed on the AFM tip itself when used for tip-enhanced laser ablation …”

Section: Resultssupporting

confidence: 72%

“…The distance between the ripples was 270−300 nm, which is consistent with laser-induced periodic surface structures which can be produced by subpicosecond 37,38 or nanosecond laser pulses. 39 These structures have been observed on the AFM tip itself when used for tipenhanced laser ablation. 33 The volume of the craters was measured to determine the quantity of material removed by tip-enhanced laser ablation.…”

Section: ■ Results and Discussionmentioning

confidence: 93%

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Wavelength-Dependent Tip-Enhanced Laser Ablation of Organic Dyes

2019

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The wavelength dependence of atomic force microscope apertureless tip-enhanced laser ablation was studied using a series of organic dyes to assess the effect of surface optical absorption. An optical parametric oscillator laser with a tunable wavelength range of 410−2100 nm was used to irradiate a gold-coated atomic force microscope tip which was held 15 nm above the surface of a dye thin film vibrating in tapping mode to generate tip-enhanced laser ablation. Crater formation was investigated for rhodamine B, methylene blue, and IR 797 dye thin films which have absorption maxima near 550, 650, and 700 nm, respectively. Crater formation was not observed for wavelengths greater than 700 nm for any of the dyes. Below 700 nm, the crater size was greatest near 500 nm for all dyes and decreased from 500 to 700 nm, and no ablation was observed at longer wavelengths. The crater size did not correlate with the solution or thin film optical absorption of the dyes. The mechanism for tip-enhanced laser ablation is postulated to be either ballistic ejection of gold atoms or direct heat transfer from the tip to the surface.

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Section: Resultssupporting

confidence: 72%

Section: ■ Results and Discussionmentioning

confidence: 93%

Wavelength-Dependent Tip-Enhanced Laser Ablation of Organic Dyes

2019

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“…They are roughly classed into two categories: the inherent damage mechanism of materials and the preparation and treatment methods [14,16,17]. The inherent damage mechanism of dielectric materials is related to the localized enhancement of the electric field intensity (EFI) [28,29], with damage resulting from localized temperature rises [4,30,31]. For silica films under the irradiation of nanosecond pulsed laser, the local electric field enhancement in the sub-surface is a main factor in laser-induced damage [28].…”

Section: Designmentioning

confidence: 99%

Optical and Laser-Induced Damage Characterization of Porous Structural Silicon Oxide Film with Hexagonal Period by Nanoimprint Lithography

et al. 2022

Coatings

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We designed and fabricated a porous nanostructured film with a hexagonal period for a high-power laser system. The proposed nanostructure exhibits polarization-independent, infrared, and antireflective properties. The measured transmittance of the structural film does not drop below 93% between 948 nm and 2500 nm (exceeding 95% from 1411–2177 nm), and this performance is maintained for incident angles ranging from 0–30°. The laser-induced damage threshold (LIDT) of the structural film (17.94 J/cm2) is much higher than that of the single layer of SiO2 film (7.06 J/cm2). These results show that the preparation process is an effective technique to obtain a large-scale structural surface for high-power laser systems.

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“…Luo et al fabricated multimode and single-mode Fiber Bragg Gratings (FBGs) using a 355 nm laser [ 27 ]. Xia et al etched subwavelength periodic ripples on the surface of silica films induced by nanosecond laser pulses [ 28 ]. Kishimoto et al proposed to fabricate micro model grid for various Moiré methods by femtosecond laser exposure.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Micro-Scale Gratings by Nanosecond Laser and Its Applications for Deformation Measurements

Yang

Zhu

et al. 2017

Micromachines

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This paper experimentally investigated the fabrication and optimization of micro-scale gratings formed by nanosecond laser etching. The mechanism of nanosecond laser processing and the geometric phase analysis (GPA) are discussed, and the factors influencing the fabrication process including laser energy, laser fluence, and ablation threshold of material, are experimentally studied. In order to eliminate the dependence of the processing parameters on the samples, depositing Al film on a sample before laser processing is proposed for the fabrication of high-quality gratings. The energy of the laser pulse is optimized for clear line etching on Al film considering the distance between adjacent lines of parallel gratings. The optimal energy of the laser pulse is 9.8 μJ, and the optimum fluence is 9.5 J/mm2 with the waist radius of the laser beam 25.7 μm. With the optimal parameters, experimental results indicate that the highest frequency of parallel gratings is about 30 lines/mm, with a line width of 29 μm, and the distance between two adjacent laser pulses being of 10 μm. By performing tensile tests, micro-scale gratings fabricated on specimens are experimentally verified. The verification tests prove that the proposed fabrication method for the micro-scale gratings in GPA measurements is reliable and applicable, and the micro-scale gratings can be fabricated in many areas of interest, such as the crack tip, for deformation measurements. Furthermore, the adhesion between the Al film and the tested sample is strong enough so that the pattern sticks well to the sample.

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The mechanism and process of nanosecond pulsed-laser induced subwavelength periodic ripples on silica films

Cited by 14 publications

References 34 publications

Wavelength-Dependent Tip-Enhanced Laser Ablation of Organic Dyes

Wavelength-Dependent Tip-Enhanced Laser Ablation of Organic Dyes

Optical and Laser-Induced Damage Characterization of Porous Structural Silicon Oxide Film with Hexagonal Period by Nanoimprint Lithography

Fabrication of Micro-Scale Gratings by Nanosecond Laser and Its Applications for Deformation Measurements

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